| 2020 |
| 07,28 |
import java.time.*;
import java.time.format.DateTimeFormatter;
//日時関連のクラスについて
public class MyApp{
public static void main(String[] args){
System.out.println();
LocalDateTime d = LocalDateTime.now();
//LocalDateTime d = LocalDateTime.of(2016, 1, 1,10,10,10);
//LocalDateTime d = LocalDateTime.parse("2016-01-01T10:10:10");
System.out.println(d.getYear());
System.out.println(d.getMonth());
System.out.println(d.getMonth().getValue());
//日時計算↓。２カ月分足して３日文引くには下記のように記載するとOK
System.out.println(d.plusMonths(2).minusDays(4));
DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy!MM!dd!");
System.out.println(d.format(dtf));
}
}
出力結果↓
出力結果↓
2020
JULY
7
2020-09-24T14:44:30.890
2020!07!28!
PR
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